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Datsun Z & ZX Parts & Accessories

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Datsun Z & ZX

Datsun Z & ZX Parts & Accessories
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1970-83 Datsun Z / ZX History And Information

Date Information
1970 Yutaka Katayama introduced the 240Z in October 1969 to the US. Powered by a 2,393 cc, 2.4 liter in-line OHC 6 cylinder with two sidedraft SU carburetors, the engine produced 150 horsepower. The only transmission offered was a 4 speed manual. 4 wheel independent suspension used front mounted MacPherson struts and rear Chapman struts. Brakes featured solid front discs and rear drums.
1971 Prompted by vibration problem on race cars, the crankshaft was redesigned. The transmission and differential were improved. A Jatco 3 speed automatic became available. Rear quarter panel and hatch received new styling.
1972 Combustion chamber shape altered, lowering compression ratio from 9.0 to 8.8:1, effectively lowering emissions and power. Rear crossmember and differential mounting were moved back 35 mm to reduce driveshaft angularity. Driveshaft became one piece with single universal joint to reduce drivetrain roughness. Auto seat belt retractors installed, rear window defroster lines ran horizontal. US models used 5" wide rims, replacing 4-1/2".
1973 Carburetors, manifolds and cylinder head changed for emissions requirements. Distributor changed to transistorized breakerless ignition system. Intermittent windshield wipers added as standard equipment. Tinted glass, 3 point adjustable seat belts, collapsible steering column and fire retardant interior introduced. Reclining seats added.
1974 260Z introduced. By lengthening the stroke to 79 mm, engine displacement increased to 2,565 cc, 2.6 liters, increasing horsepower from 129 to 139. 2+2 body style introduced by lengthening the car 12.2", which added 200 lbs. Only available with 4 speed manual transmission. Seat belt interlock was added to some models before being quickly dropped. Rear sway bar added to all models. Simulated woodgrain steering wheel replaced with padded vinyl version. Bumpers received minor updates. Quarter windows on 2+2 models opened.
1975 260Z: Front and rear bumpers were enlarged to meet Federal 5 mph regulations, adding about 130 pounds. Turn signals mounted above front bumper. By midyear, the 260 was replaced by 280Z. 280Z: To meet tougher emissions standards, a 3 mm bore increase raised engine displacement to 2,753 cc, 2.8 liters, producing 149 horsepower. BOSCH's L-Jetronic fuel injection replaced SU carburetors on all models. Transmission and differential gear ratios were changed. California models required a catalytic converter exhaust system. 280Z model was only sold in the US.
1976 A voltmeter replaced the ammeter in the center console.
1977 Engine modifications raised horsepower to 170. 5 speed manual overdrive was available. Bumpers were enlarged again.
1978 Black Pearl edition introduced on coupe models featured a black pearl metallic finish with red and silver striping.
1979 Second generation introduced, 280ZX. Only the engine, transmission and differential were carried over to the new model. Horsepower was down to 135. 5 speed manual became standard. Front tension rods replaced compression rods. Semi-trailing arms were added to the rear. 4 wheel disc brakes were available for the first time, fronts were vented. Air conditioning and power steering were standard on 2+2 models. GL (Grand Luxury) package included power steering, cruise control, headlight washers and power windows. 280ZXR special edition was offered in limited numbers to homologate the large rear wing for racing.
1980 Horsepower was down by 3 to 132, due to emission regulations. T-tops initially became available in GL coupe models. Leather upholstery was optional. 3,000 10th Anniversary edition models offered, featuring twotone paint, gold emblems, gold tone alloy wheels, headlight washers and automatic climate control.
1981 First turbocharged Z introduced, producing 180 horsepower with a 3 speed automatic transmission in coupe models only. Turbo models also received many suspension changes with larger wheel and tires as well. Ammeter was replaced with a boost gauge on turbo models, and an oil temperature gauge was combined with the oil pressure gauge. Engine changed and a three-way catalytic converter raised horsepower to 145 on non-turbo models.
1982 Turbocharged engine became available in 2+2 model. All hoods received NACA scoop. Power rack and pinion steering became standard, previously available on turbo models only. Body colored bumpers with integrated overriders became standard. New interior features included upgraded upholstery, leather seating with suede accents, voice warning system and a digital AM/FM cassette radio.
1983 Suspension was identical on normally aspirated and turbocharged cars. A leather and digital option offered leather trim, digital dash, automatic climate control, electric mirror defogging, automatic rear defogger and bronze tinted glass.